PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SK-139887Ring,wearing

Rps-Fl, Inc. Dba Rps Inc · NSN 4320-00-202-6327 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-00-202-6327 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-202-6327. Primary manufacturer part number: SK-139887.
Features
  • Ring,wearing — FSC 4320
  • Surface Finish: 125.0 MICROINCHES RIGHT FACE
  • Surface Finish: 125.0 MICROINCHES LEFT FACE
  • Body Outside Diameter: 14.875 INCHES NOMINAL IN
  • Surface Finish: 125.0 MICROINCHES OUTSIDE
  • Corner Shape: SQUARE ALL CORNERS
  • Material: COPPER ALLOY
  • Surface Finish: 125.0 MICROINCHES INSIDE
Applications
  • Applications requiring Copper Alloy construction
General Description

The Ring,wearing, cataloged under National Stock Number 4320-00-202-6327, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Rps-Fl, Inc. Dba Rps Inc. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-00-202-6327
Primary Part NumberSK-139887
Item NameRing,wearing
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerRps-Fl, Inc. Dba Rps Inc
StatusACTIVE
Surface Finish125.0 MICROINCHES RIGHT FACE
Surface Finish125.0 MICROINCHES LEFT FACE
Body Outside Diameter14.875 INCHES NOMINAL IN
Surface Finish125.0 MICROINCHES OUTSIDE
Corner ShapeSQUARE ALL CORNERS
MaterialCOPPER ALLOY
Surface Finish125.0 MICROINCHES INSIDE
Material Document and ClassificationQQ-C-390,ALLOY 903 FED SPEC SINGLE MATERIAL RESPONSE
Body Inside Diameter14.000 INCHES MINIMUM AND 14.001 INCHES MAXIMUM IN
Body StylePLAIN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5930-00-060-689210073 INTERCHANGEABLE
Switch,pressure
Celtech Corporation Div Use CAGE 65552 for All Orders
5940-00-087-4177978016-3 INTERCHANGEABLE
Terminal,feedthru
Raytheon Company Dba Raytheon
5330-00-149-974010073 INTERCHANGEABLE
Retainer,packing
Texas Hydraulics, Inc.
5342-00-200-7564 INTERCHANGEABLE
Mount,resilient,weapon System
5133-00-228-1358 INTERCHANGEABLE
Drill,twist
6620-01-155-4012 INTERCHANGEABLE
Indicator,engine,te
6220-01-194-6591100-7-3 INTERCHANGEABLE
Parts Kit,mounting Bracket
Unity Manufacturing Co
3040-01-225-809010073 INTERCHANGEABLE
Shaft,straight
Wireless Data Corporation
5342-01-260-625210073 INTERCHANGEABLE
Clamp
Peterson Spring a Peterson American Co Fastener and Special Products
3120-01-310-6751100-73 INTERCHANGEABLE
Bushing,sleeve
Aerol Llc
Cross-Reference Index
Part NumberManufacturer
13981-P Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
SK-139887 PRIMARY Rps-Fl, Inc. Dba Rps Inc (USA)
SK-139887 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
13981-P PRIMARY Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA)
10073 PRIMARY Rps-Fl, Inc. Dba Rps Inc (USA)
SK-139887 Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA)
Related Parts
5930-00-060-6892INTERCHANGEABLE
SWITCH,PRESSURE
10073
5940-00-087-4177INTERCHANGEABLE
TERMINAL,FEEDTHRU
978016-3
5330-00-149-9740INTERCHANGEABLE
RETAINER,PACKING
10073
5342-00-200-7564INTERCHANGEABLE
MOUNT,RESILIENT,WEAPON SYSTEM
5133-00-228-1358INTERCHANGEABLE
DRILL,TWIST
6620-01-155-4012INTERCHANGEABLE
INDICATOR,ENGINE,TE
6220-01-194-6591INTERCHANGEABLE
PARTS KIT,MOUNTING BRACKET
100-7-3
3040-01-225-8090INTERCHANGEABLE
SHAFT,STRAIGHT
10073
5342-01-260-6252INTERCHANGEABLE
CLAMP
10073
3120-01-310-6751INTERCHANGEABLE
BUSHING,SLEEVE
100-73
1377-01-346-2217INTERCHANGEABLE
INITIATOR,CARTRIDGE ACTUATED
1007-3
3455-01-362-8199INTERCHANGEABLE
BLADE,BAND SAW,METAL CUTTING
10073

Frequently Asked Questions

What is NSN 4320-00-202-6327?

NSN 4320-00-202-6327 is a Ring,wearing, manufactured by Rps-Fl, Inc. Dba Rps Inc, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-00-202-6327?

NSN 4320-00-202-6327 has 6 cross-referenced part numbers: 13981-P (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging), SK-139887 (Rps-Fl, Inc. Dba Rps Inc), SK-139887 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging), 13981-P (Curtiss-Wright Electro-Mechanical Corporation Div Epd), 10073 (Rps-Fl, Inc. Dba Rps Inc) and 1 more.

What NSN replaces 4320-00-202-6327?

There are 12 known substitutes for 4320-00-202-6327: 5930-00-060-6892, 5940-00-087-4177, 5330-00-149-9740 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of SK-139887?

Key specifications for SK-139887: Surface Finish: 125.0 MICROINCHES RIGHT FACE; Surface Finish: 125.0 MICROINCHES LEFT FACE; Body Outside Diameter: 14.875 INCHES NOMINAL IN; Overall Length: 1.500 INCHES NOMINAL IN. 11 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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